diff options
Diffstat (limited to 'sysdeps/hppa/elf/start.S')
-rw-r--r-- | sysdeps/hppa/elf/start.S | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/sysdeps/hppa/elf/start.S b/sysdeps/hppa/elf/start.S new file mode 100644 index 0000000..4cf832a --- /dev/null +++ b/sysdeps/hppa/elf/start.S @@ -0,0 +1,97 @@ +/* ELF startup code for HPPA. + Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file with other + programs, and to distribute those programs without any restriction + coming from the use of this file. (The GNU Lesser General Public + License restrictions do apply in other respects; for example, they + cover modification of the file, and distribution when not linked + into another program.) + + Note that people who make modified versions of this file are not + obligated to grant this special exception for their modified + versions; it is their choice whether to do so. The GNU Lesser + General Public License gives permission to release a modified + version without this exception; this exception also makes it + possible to release a modified version which carries forward this + exception. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + + .text + + .align 4 + + .import main, code + .import $global$, data + .import __libc_start_main, code + .import __libc_csu_fini, code + .import __libc_csu_init, code + + .globl _start + .export _start, ENTRY + .type _start,@function +_start: + + .proc + .callinfo + + /* load main */ + ldil LP%main, %r26 + ldo RP%main(%r26), %r26 + + /* argc and argv should be in 25 and 24 */ + + /* Expand the stack to store the 5th through 7th args */ + ldo 64(%sp), %sp + + /* void (*rtld_fini) (void) (actually the 6th arg) */ + stw %r23, -56(%sp) + + /* void (*init) (void) */ + ldil LP%__libc_csu_init, %r23 + ldo RP%__libc_csu_init(%r23), %r23 + + /* void (*fini) (void) */ + ldil LP%__libc_csu_fini, %r22 + ldo RP%__libc_csu_fini(%r22), %r22 + stw %r22, -52(%sp) + + /* void *stack_end */ + stw %sp, -60(%sp) + + /* load global */ + ldil L%$global$, %dp + ldo R%$global$(%dp), %dp + + bl __libc_start_main,%r2 + nop + /* die horribly if it returned (it shouldn't) */ + iitlbp %r0,(%r0) + nop + + .procend + +/* Define a symbol for the first piece of initialized data. */ + .data + .globl __data_start +__data_start: + .long 0 + .weak data_start + data_start = __data_start |